1. Reproduction

2. Vocabulary Fertilization – joining of a sperm and an egg cell
Gamete – sex cell (sperm or egg)
Genes – DNA that determines your traits
Meiosis - cell division to produce gametes with ½ the number of chromosomes

3. Vocabulary
Mitosis – cell division to produce cells with a full set of chromosomes
Offspring – new individuals produced as a result of reproduction
Zygote – fertilized egg

4. Reproductive System: Function: produces _____________ (sex cells) and offspring
Gametes
Ensures the survival of the ____________
Sexual reproduction:
A. requires ____parents
B. ______the genes are obtained from each parent
C. offspring are not ____________ to either parent due to inheriting _________ from both parents
species 2
1/2
Identical
Genes/DNA

5. Organs: A. Male B. Female 1. Testes: produce _______
1. Ovaries: produces ______
2. Oviduct (______________ ): where the egg is _______________
3. Uterus: lined with _____________where the zygote (_____________ ) attaches and ______________
Sperm
Egg
Fallopian Tubes
Released/ Fertilized
Thick muscular walls
Fertilized egg
Develops

6. Gametes: Sperm A. __________ sex cell B. contains _____ chromosomes
Egg
A. ____________ sex cell
B. contains ______ chromosomes
Male 23
Female 23

7. Meiosis: Cell division used to produce ____________
Produces cells with _______ the genetic information
Produces _______ sperm cells or ______ egg cell
Gametes (sex cells)
1/2 4 1

9. Fertilization: Sperm Joining of a ___________ and an _________ cell
Produces a ____________ with 46 chromosomes (23 pairs)
Occurs in the __________ of the female (internal fertilization)
If the egg does not become fertilized in the oviduct then it passes out of the body and __________________ begins
Sperm
Egg
Zygote
Oviduct
Menstruation

10. Development After Fertilization:
Zygote undergoes mitosis cell division as it travels down the _____________and attaches to the _____________
Once attached to the uterus the _______________ forms to exchange __________, ______________ and __________ between the baby and mother
The baby is attached to the placenta by the _______________
Embryo during the first _____ weeks of development
Fetus from eight weeks to _______________
Gestation period: pregnancy
Oviducts
Uterus (Implantation)
Placenta
Wastes
Nourishment
Protection
Umbilical cord 7
9 months

11. A. Sperm
B. Egg
C. Fertilization
D. Zygote
E.- G. Mitosis
Sperm and Egg are produced by Meiosis
Proof that Fertilization has occurred is that there are twice as many chromosomes in the zygote than there are in the egg or sperm cell alone